HiRISE (NASA)
HiRISE is a high resolution camera onboard the Mars Reconnaissance Orbiter (NASA). We take images of the surface of Mars. Based out of UArizona in Tucson.
Joined Aug 2018
Thanks to our friends at USGS Astrogeology for creating these, and Happy Martian New Year!
HiRISE 3D: Nirgal Vallis Headwaters
Our goal is to take a look at the head wall of the origin of Nirgal Vallis and also to look for layers and small scale erosional features.
Full image: https://www.uahirise.org/anaglyph/ESP_085046_1530_ESP_085191_1530_RED
NASA/JPL-Caltech/University of Arizona
Brain Terrain on the Floor of a Crater
The objective of this observation is to examine “brain terrain” on part of the floor of a crater in Claritas Fossae. Pictures like this can help us understand past climate and why nearby craters have slight differences in the expression of brain terrain. In some areas, the coverage is complete; in this one, only part of the floor is covered in brain terrain.
https://uahirise.org/hipod/ESP_075501_1405
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Scalloped Depressions with Layers
This image, of the northern plains of Mars, is marked by depressions in a layer of material that covers the region. The depressions, several of which have coalesced together, have scalloped edges and layers in their walls.Their presence has led to hypotheses of the removal of subsurface material, possibly ground ice, by sublimation (evaporation). This process is believed to be ongoing today.
https://uahirise.org/hipod/PSP_002439_2265
NASA/JPL-Caltech/University of Arizona
Flow Features in Bakhuysen Crater
In this area near the crater rim, high resolution of really nice flow features also visible in Context Camera data can help us understand how these features relate to the emplacement of ejecta deposits. A stereo pair will be useful for mapping stratigraphic relationships. The rim of Bakhuysen is dissected with numerous channels.
ID: ESP_075510_1555
date: 5 September 2022
altitude: 256 km
https://uahirise.org/hipod/ESP_075510_1555
NASA/JPL-Caltech/University of Arizona
#Mars
Chryse Chaos
In planetary nomenclature, the term “chaos” means “distinctive area of broken terrain.” The general shape of chaos terrain is steep-sided mesas (or other large blocky material) in close proximity to one another. The mesas are created by erosion of the interconnected channels into valleys. With time these valleys expand creating a jumble of hills
ID: ESP_054424_1925
date: 7 March 2018
altitude: 279 km
https://uahirise.org/hipod/ESP_054424_1925
NASA/JPL-Caltech/University of Arizona
#Mars #science
Delta-Like Lobes in Aeolis Dorsa
Branching fluvial deposits appear similar to others at Aeolis Dorsa which have been interpreted as delta-like. With HiRISE images and elevation models we would be able to measure deposit thicknesses more accurately. Observations like these may suggest that Aeolis Dorsa is a paleo-coastal region that may be an important site for exploration in the future.
https://uahirise.org/hipod/ESP_054140_1735
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Layers in Eberswalde Crater
This image covers a portion of Eberswalde Crater, revealing a possible delta-lake transition.
The bright layers are part of the terminal scarp at the eastern edge of the delta. Some of the steeper slopes visible at the edge of the fan may be coarser-grained resistant channel ridges.
https://uahirise.org/hipod/PSP_004000_1560
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Ares Vallis Cataract
The presence of this large cataract in Ares Vallis confirms that this channel was carved by water, probably in one or many large catastrophic flooding events.
The horseshoe-shaped headcut here is only part of a larger cataract system, and probably formed during the last stage of flooding. The inner channels are now filled with dunes formed by wind blowing along the channel floor.
The Enduring Charm of Martian Spiders
Araneiform terrain (colloquially: spider-like terrain) is located in the south polar region of Mars and evolves in appearance over the spring and summer. In the season shown here, the thin bright lines on the surface (the spider legs) are troughs and many of these features have dark fan-shaped markings emanating from them.
More: https://uahirise.org/hipod/ESP_056927_0940
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Valleys in a Crater in Terra Cimmeria
Two valleys within this crater appear to terminate at the crater’s central pit. High resolution measurements of these valleys can help us estimate the amount(s) of water required to form the fluvial features in the crater. This will help in determining the hydrous history of the crater and, potentially, the local area.
https://uahirise.org/hipod/ESP_057490_1520
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
The Eroded Floor of Ares Vallis
Eroded and littered with dozens of impact craters! Ares Vallis is an outflow channel and was the landing site of NASA’s Mars Pathfinder spacecraft, which studied a region of the valley in 1997.
ID: ESP_054450_1935
date: 9 March 2018
altitude: 279 km
https://uahirise.org/hipod/ESP_054450_1935
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Richardson Crater Dunes, Partially Defrosted
Large patches of carbon dioxide frost are observed, linked in some places by channels possibly carved into the ground by the erosion of carbon dioxide gas, as blocks dry ice slide down slope and sublimate (evaporate directly from solid to gas). Numerous dust devil tracks have left their mark.
https://uahirise.org/hipod/PSP_004230_1080
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Frosty Slopes in Late Martian Spring
This HiRISE image, approximately 1.5 by 3 kilometers, shows frosted gullies on a south-facing slope within a crater.
At this time of year only south-facing slopes retain the frost, while the north-facing slopes have melted. Gullies are not the only active geologic process going on here. A small crater is visible at the bottom of the slope.
https://uahirise.org/hipod/ESP_039114_1115
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Light-Toned Material in Melas Chasma
In this image, some layers are visible, but much of the surface has a strange scalloped texture. The cause of this texture is unclear, but it is likely related to the mechanism of erosion of these deposits as well as their physical nature.
Gullies and Arcuate Ridges
This observation shows gullies and arcuate ridges in a crater in the Southern Hemisphere of Mars. Arcuate ridges and gullies are found together at many places on Mars, leading some researchers to suggest that their coexistence may be a result of a single process.
HiRISE 3D: Tectonics on Northern Coprates Chasma Wall
Coprates Chasma displays here an unusual wall shape. The middle part shows an unusual texture that could be related to faulting parallel to Valles Marineris inherited from chasma initiation, or perhaps different composition (intrusives).
https://www.uahirise.org/anaglyph/ESP_084506_1670_ESP_084585_1670_RED
NASA/JPL-Caltech/University of Arizona
#Mars #science
Spider Webs of the Red Planet
Radial and concentric fractures are familiar from forces penetrating a brittle layer, such as a rock thrown through a glass window. These particular fractures were evidently produced by something emerging from below the brittle surface of Mars.
Erosion in North Arabia Terra
The objective of this observation is to examine an upper plains unit that is eroding. The image field includes a higher unit with fractures and hollows forming. This scene is also visible in Context Camera data.
ID: ESP_057494_2230
date: 1 November 2018
altitude: 299 km
https://uahirise.org/hipod/ESP_057494_2230
NASA/JPL-Caltech/University of Arizona
#Mars #science #NASA
Dynamic Mars
This picture managed to capture a small avalanche in progress, right in the color strip. The small white cloud in front of the brick red cliff is likely carbon dioxide frost dislodged from the layers above, caught in the act of cascading down the cliff. It is larger than it looks, more than 20 meters across, and (based on previous examples) it will likely kick up clouds of dust when it hits the ground.
More: https://uahirise.org/hipod/ESP_042572_2640
NASA/JPL-Caltech/University of Arizona
#Mars
HiRISE (NASA)
HiRISE is a high resolution camera onboard the Mars Reconnaissance Orbiter (NASA). We take images of the surface of Mars. Based out of UArizona in Tucson.
Joined Aug 2018